Hybrid Active Noise Cancellation (ANC) Technology Four built-in noise canceling microphones and two voice call microphones with the latest in digital signal processing and pioneering beamforming technology. The mics focus on your voice while isolating the sounds around you. Ambient Sound/Transparency Mode Placing your finger on the earbud adjusts the Transparency Mode settings and lets in ambient sound. So you can instantly chat with someone without taking off your Bluetooth headphones. Advanced Bluetooth Connection True Bluetooth 5.2 wireless connection technology keeps your music and calls connected wirelessly. With these Bluetooth headphones, you can enjoy a stable connection during conversations and music without audio dropouts or interruptions. Support AAC, SBC codec. Reduced noise, better sound ANC Active Noise Cancellation blocks out external noise without affecting sound quality. The 10mm large-aperture speaker delivers premium sound regardless of your mobile device or environment. 3rd GEN Battery Performance Up to 7 hours of playtime on a single charge with an additional 20 hours of battery life with the Lightweight and Comfortable Charging Case All-day comfort. Every surface that touches your ear is made of soft silicone. Comes with 3 sizes of flexible ear tip to help you get the best fit and seal for the best noise canceling experience. Has 20 hours of battery life with the charging case. Crystal clear calls 4-Microphone call technology, no audio cut or interruption. IPX5 waterproof Effective waterproof, sweat and rain.